/**
 * Copyright 2019 Anthony Trinh
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package ch.qos.logback.core.net.ssl;

import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.SecureRandom;

import org.junit.Test;

import ch.qos.logback.core.net.ssl.SSL;
import ch.qos.logback.core.net.ssl.SecureRandomFactoryBean;


/**
 * Unit tests for {@link SecureRandomFactoryBean}.
 *
 * @author Carl Harris
 */
public class SecureRandomFactoryBeanTest {

  private SecureRandomFactoryBean factoryBean = new SecureRandomFactoryBean();

  @Test
  public void testDefaults() throws Exception {
    assertNotNull(factoryBean.createSecureRandom());
  }

  @Test
  public void testExplicitProvider() throws Exception {
    SecureRandom secureRandom = SecureRandom.getInstance(
        SSL.DEFAULT_SECURE_RANDOM_ALGORITHM);
    factoryBean.setProvider(secureRandom.getProvider().getName());
    assertNotNull(factoryBean.createSecureRandom());
  }

  @Test
  public void testUnknownProvider() throws Exception {
    factoryBean.setProvider(SSLTestConstants.FAKE_PROVIDER_NAME);
    try {
      factoryBean.createSecureRandom();
      fail("expected NoSuchProviderException");
    }
    catch (NoSuchProviderException ex) {
      assertTrue(ex.getMessage().contains(SSLTestConstants.FAKE_PROVIDER_NAME));
    }
  }

  @Test
  public void testUnknownAlgorithm() throws Exception {
    factoryBean.setAlgorithm(SSLTestConstants.FAKE_ALGORITHM_NAME);
    try {
      factoryBean.createSecureRandom();
      fail("expected NoSuchAlgorithmException");
    }
    catch (NoSuchAlgorithmException ex) {
      assertTrue(ex.getMessage().contains(SSLTestConstants.FAKE_ALGORITHM_NAME));
    }
  }

}
